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Finding the Fourth Proportional to 95,100.80, 131,206.80 and 54,813.28

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Solution

The fourth proportional to 95,100.80, 131,206.80 and 54,813.28 is: 75,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,100.80 : 131,206.80 = 54,813.28 : x
  2. Step 2: Convert to fraction form
    95,100.80/131,206.80 = 54,813.28/x
  3. Step 3: Cross multiply
    95,100.80x = 131,206.80 × 54,813.28
  4. Step 4: Simplify right side
    95,100.80x = 7,191,875,066.30
  5. Step 5: Solve for x
    x = 7,191,875,066.30/95,100.80
  6. Step 6: Final answer
    x = 75,623.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.